Well, both franchise has its own special feel. They are actually very, very different games. Call of Duty doesn't rely on team work the same way Battlefield does. Call of Duty is about smaller maps where people very often camp in somewhere and gather kills. In Battlefield its always huge maps where you can sneak around your enemies if you want to. It has a sense of ballistics built in so cross map sniping is also more or less ruled out. Because of the destructuble envoriment it is also hard to camp and because of the threat of tanks, it gives many options for infantry teams to work together. (Sniper goes on hill and signals that a tank is headed to rest of team. Team sees it, hide, then when tank is in the open they take it out with RPGs. If Sniper does not signal, or people don't hide and tank sees them, then they're as good as dead.)So I guess its down to either you like team games where you really work together (Battlefield). Or if you like feeling like you're in an action movie (Call of Duty).  Ather lenoro' sharanteh! (Ather's light guide us!)"Food for thought!"